GUANLIN MERV 8 11 13 pleated paper frame filter, HVAC and AHU panel air filter for commercial and industrial ventilation.
MERV 8 to 13 pleated panel filters with moisture-resistant paper frames, delivering medium efficiency on fine dust and pollen for HVAC, AHU and commercial ventilation systems.
Description
MERV ratings give a direct answer to a specification question that G4 does not: how well does the filter capture the fine fraction. GUANLIN MERV panels are built on the same rigid paper frame platform as our primary filters, with progressively denser pleat packs for MERV 8, 11 and 13 duties, so a system can be staged without changing frame dimensions.
Why Choose GUANLIN MERV Panel Filters
- MERV 8 / 11 / 13 options — one frame platform, three efficiency levels to suit the specification.
- Fine dust and pollen capture — MERV 11 and 13 arrest the particles that drive occupant complaints and coil fouling.
- Rigid moisture-resistant frame — no sag or edge bypass in humid air handling units.
- Even pleat spacing — predictable pressure drop and uniform face velocity.
- Direct replacement — same dimensions as standard HVAC panel filters.
- Custom sizes — any dimension to your AHU opening.

Application Scenarios
Commercial HVAC systems
Offices, hotels and retail spaces use MERV 8 to 13 panels to control fine dust and pollen while keeping fan energy within design.
Cleanroom pre-filtration
MERV 13 ahead of HEPA stages removes the fine fraction that would otherwise shorten terminal filter life.
Hospitals and laboratories
Higher MERV ratings support infection control and protect sensitive equipment.
Industrial ventilation and make-up air
Fine process dust is captured before it reaches coils and ductwork.
Data centres and telecom rooms
MERV 11 to 13 keeps server inlet air clean with manageable pressure drop.
Pharmaceutical and food production
Controlled environments rely on staged filtration with predictable efficiency.

Our Factory

GUANLIN has manufactured filtration products in Dongguan since 2003, operating a 6,000 m² plant with automated filter bag sewing lines, automated singeing equipment, cage welding systems and pleated filter production lines. Products are exported to Singapore, Vietnam, Malaysia and other markets, with ISO 9001 and ISO 14001 certified quality management.
Performance Notes
MERV 8 suits general commercial ventilation; MERV 11 is the common choice where fine dust and pollen matter; MERV 13 is used ahead of HEPA stages and in spaces with stringent air quality requirements. Pressure drop rises with MERV rating, so fan capacity should be checked when upgrading.

Product Specifications
| Item | Specification |
| Efficiency | MERV 8 / 11 / 13 |
| Media | Synthetic fibre pleated media |
| Frame | Moisture resistant paper frame |
| Thickness | 21–46 mm |
| MOQ | 50 pcs |

FAQ
Q1. Which MERV should I choose?
MERV 8 for general ventilation, 11 where fine dust and pollen matter, 13 ahead of HEPA.
Q2. Will higher MERV increase fan load?
Yes, pressure drop rises; check fan capacity before upgrading.
Q3. Can you make custom sizes?
Yes, any dimension to your drawing.
Q4. MOQ and lead time?
50 pcs, 10–20 days.
Key Specifications
- Efficiency: MERV 8 / 11 / 13
- Frame: moisture resistant paper
- Sizes: 592×592 / 287×592 / 490×592 mm and custom
- MOQ: 50 pcs





